WASECA, Minn. – Managing for soil phosphorus can be tricky. The line between this vital nutrient and crop results isn't as straightforward as that for nitrogen. SeveralUniversity of Minnesota ...

WEST LAFAYETTE, Ind. - With fertilizer prices the highest they've ever been, the most important thing row crop growers can do is take a soil sample and have it analyzed, said Purdue University ...

A soil test for phosphorus represents an index of phosphorus availability to crops. A soil test needs to correlate to crop response in order to provide a useful index of crop response and any ...

BROOKINGS, S.D. -- Lower phosphate fertilizer prices have generated interest among farmers to build soil phosphorus levels. At the same time, the practice is puzzling to some, explains Ron Gelderman, ...

Very dry conditions, like those seen in most of Arkansas this fall, impact two aspects of soil sampling that make it hard to measure how much phosphorus and potassium are in a field. Arkansas ...

A new fertilizer recommendation tool, developed nationally in collaboration with the Arkansas Agricultural Experiment Station, could save farmers millions of dollars annually while reducing excess ...

The best way to minimize fertilizer expenditure and maximize efficiency is one you’ve probably heard of before. The 4Rs — right product, right rate, right time and right placement — tell you exactly ...